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Re: Printer Fan Control
#3D
Charlie, what 3D printing software?are you using? With Marlin you could probable use Gcode to control your fans. Ralph On Fri, Oct 25, 2019 at 12:24 PM CLevinski <clevinski@...> wrote: Hello, All, --
Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer |
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Printer Fan Control
#3D
Hello, All,
Just a mention to those of you who use 3D printers.? John Lindo has found that precise control of the cooling fans in a 3D printer is very helpful in making especially the more difficult prints.? I have much less experience, but have seen the benefits.? Unfortunately, my printer control board does not support electronic control of the fans, so I built a little controller to handle my three fans.? (The first is the extruder fan, which I usually run at half-speed while printing the first layer, and then increase to full speed for subsequent layers.? I stole John's part cooling duct design, which uses two cooling fans, and these can be controller independently.) I have provided some photos below.? If it's of interest, I could provide the simple 555 IC circuit that I used, but I went a bit overboard, using TIP120 Darlington transistors, rated at around 6 amps, to control my little 100 mA fans!? Anyway, please LMK and I will share the details. -- Regards, Charlie New Jersey, USA |
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Welcome to digitalhobbyist.
A hearty welcome to the 7 new members who have joined this week. including 1 from New Zealand.
I hope you will find this group informative and useful. Please feel at home with a great bunch of members who i rate as being at the top of there skill levels. Remember there is not such a thing as a "stupid question", please ask and join in. Again welcome.so much appreciated, tell your friends and other hobbyists about us. -- John Lindo |
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Re: What did you do in your shop today?
#MISC
Ralph.
see link, it?s a typical Stevenson Block you can purchase from Arc Euro.UK and many other tool houses. Note the overhang, also if holding the blocks horizontal in standard vise, the nut is larger in diameter than the flats this can be an issue and you then have severe overhang, and dangerous, IMHO this standard ER external ring style is suitable if the block is standing vertical only. The internal locking ring type i much prefer.for horizontal use. It?s all a matter of fit for use. https://www.arceurotrade.co.uk/Catalogue/Collets/ER-Collet-Fixtures/Stevensons-ER25-Collet-Blocks Thanks -- John |
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Re: What did you do in your shop today?
#MISC
I already fixed the espousal question here: I printed parts for the dishwasher that kept it going until we could afford to replace it. Thingiverse.com had a good selection of wheels, and some SS carriage bolts did the rest.? :) Bill in OKC
On Sunday, October 20, 2019, 07:45:28 AM CDT, CLevinski <clevinski@...> wrote:
Bill in OKC, You can't officially steal it from me, as I officially stole it from Hobby Machinist!? I think it generates some good exchange of ideas wherever it is.? And maybe, just maybe, it will help provide us potential answers to the dreaded spousal, "but what do you DO with it?" question! -- Regards, Charlie New Jersey, USA |
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Re: conning tower nut
#MODS
Hi found another pic. The nut is effectively twice as long as the original? and so far pleased with effectively no backlash. I don't know about the longevity of the delrin but I can make inserts easily and if all fails I make a bronze nut. I also fitted double ball thrust bearings as well? Regards Les
On Sunday, 20 October 2019, 11:13:39 BST, les higgins via Groups.Io <leshiggins@...> wrote:
Hi i liked your conning tower idea but I was already making a special nut with a delrin? insert see pics I apologise for poor quality and detail. Essential I used a 20 x 16 x 30 steel block with three clamping 3mm cap screw this was bored out to 13mm to receive a 13mm delrin bush tapped to m10 LH. It uses the original locating boss Regards Les
On Sunday, 20 October 2019, 06:42:00 BST, John Lindo <bechetboat@...> wrote:
Les. Playing catch up with the forum. Are you now OK with the principles of the "conning tower" nut. I called it that as it looks like a submarine LOL. I see Charlie attached some good photo?s, this saves digging out mine from 7 years ago. If in doubt please yell out. -- John |
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Re: conning tower nut
#MODS
Hi i liked your conning tower idea but I was already making a special nut with a delrin? insert see pics I apologise for poor quality and detail. Essential I used a 20 x 16 x 30 steel block with three clamping 3mm cap screw this was bored out to 13mm to receive a 13mm delrin bush tapped to m10 LH. It uses the original locating boss Regards Les
On Sunday, 20 October 2019, 06:42:00 BST, John Lindo <bechetboat@...> wrote:
Les. Playing catch up with the forum. Are you now OK with the principles of the "conning tower" nut. I called it that as it looks like a submarine LOL. I see Charlie attached some good photo?s, this saves digging out mine from 7 years ago. If in doubt please yell out. -- John |
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As Richard has brought the topic of the Stevenson Blocks into the forum recently, and very nicely made.
I have taken the liberty to enclose pictures of my 3D box to securely hold my Heinz 57 varieties. Blocks and both types of locking rings register on spigots and then the lid is fitted. Suffering with humidity problems where i live, I have to enclose most tooling. Also less chance of them getting damaged. Where would we now be without a 3D printer.? Hope of interest. -- John |
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Re: conning tower nut
#MODS
Les.
Playing catch up with the forum. Are you now OK with the principles of the "conning tower" nut. I called it that as it looks like a submarine LOL. I see Charlie attached some good photo?s, this saves digging out mine from 7 years ago. If in doubt please yell out. -- John |
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Just finished making some new High/Low gears for the Real Bull mini lathe.
Standard RELS surfacing and facing the blanks. CNC cut the teeth 12 T 20 T 21 T 29 T. The 12 T 20 T were cut separately and then shrunk together. CNC cut the the keyways.See video. A photo shows checking the distance between meshing teeth. I cut my teeth a smidgin larger, True distance from c/l of the layshaft to the c/l of the spindle? is 1 13/16" or 46.18 mm. I believe the Sieg or H/F have the same dimension. By meshing the teeth held on the arbors used to cut them, one arbor in the lathe chuck and? the other in the QCTP boring tool holder, then slip the gears off the arbors and then measuring? across the diameters? by subtracting half the arbor diameters from the initial measurement I ended up with 46.45 mm. This will allow me some "bedding in" of gears when fitted to the headstock. Hope of intere -- John |
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Re: What did you do in your shop today?
#MISC
Richard
Very nice. Can you please explain to the forum members the reasoning for an internal locking nut. as opposed to the "standard" external nut.? Cheers -- John |
John Lindo
Bill in OKC too
